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    • 9. 发明授权
    • Thermal paper with security features
    • 具有安全功能的热敏纸
    • US06562755B1
    • 2003-05-13
    • US09699486
    • 2000-10-31
    • Wendell B. Halbrook, Jr.Mary Ann Wehr
    • Wendell B. Halbrook, Jr.Mary Ann Wehr
    • B41M530
    • B41M3/142B41M5/282B41M5/42B41M7/0027B41M7/0045B41M7/0081B41M2205/04B41M2205/36D21H21/48
    • Thermosensitive recording materials such as thermal paper with a thermochromic composition applied to the back thereof and overcoated with a protective coating provide a security feature without pre-reacting the active compounds in the thermosensitive recording materials or causing the loss of the color-forming properties of the thermosensitive recording materials. Methods for preparing thermal papers with a thermochromic composition as a security feature apply a thermochromic printing ink to the opposite side of the thermosensitive layer of the thermal paper followed by a coating composition that forms a protective coating over the thermochromic ink. The thermochromic printing ink and coating composition are selected so as not to pre-react with the thermosensitive layer or cause the loss of the color-forming properties of the thermosensitive layer.
    • 热敏记录材料,例如热敏纸,其中热变色组合物涂覆在其背面并用保护涂层涂覆,提供了安全特征,而不使活性化合物在热敏记录材料中预反应或导致成色性能的丧失 热敏记录材料。 用热致变色组合物制备热敏纸作为安全特征的方法将热致变色印刷油墨应用于热敏纸的热敏层的相反侧,随后是在热变色油墨上形成保护涂层的涂料组合物。 热变色印刷油墨和涂料组合物被选择为不与热敏层预反应或导致热敏层的着色性能的丧失。
    • 10. 发明授权
    • Thermal paper with security features
    • 具有安全功能的热敏纸
    • US06245711B1
    • 2001-06-12
    • US09429073
    • 1999-10-29
    • Wendell B. Halbrook, Jr.
    • Wendell B. Halbrook, Jr.
    • B41M530
    • B41M3/14B41M5/30
    • A thermal paper with an image derived from a U.V., visible light or electron beam curable security ink has more than one means of security. Water repelling properties of the ink are a first security. A variable light absorbing and/or transmitting pigment or dye in the ink, pseudo-water mark or both, provide one or more additional security measures. Methods of preparing the thermal paper comprise printing the security ink on thermal paper on the surface opposite the thermosensitive coating and exposing the print to a U.V., visible light or electron beam radiation.
    • 具有衍生自U.V.,可见光或电子束可固化安全墨水的图像的热敏纸具有多种安全性。 墨水的排斥性能是第一种安全性。 油墨中的可变光吸收和/或透射颜料或染料,假水标记或两者都提供一种或多种额外的安全措施。 制备热敏纸的方法包括在与热敏涂层相对的表面上的热敏纸上印刷安全油墨,并将印刷品暴露于紫外线,可见光或电子束辐射。